No. 5279-4/8

LC4100C

Pin Functions

Symbol

I/O

Function

OUT1 to

OUT240

DISP

DF

LOAD

L/R

CH120

EIO1

EIO3

EIO4

O

I

I

I

I

–

–

I

I

I

I

I

I/O

I

I/O

—

—

Logic system power supply

Logic system ground

LCD drive outputs

Note: * don’t care (0 or 1). These values must be fixed at either 0 or 1.

All pins with the same name must be set to the same potential.

Alternation input

Data shift pulse input (falling edge)

Data shift direction specification input

High: 120

× 2, low: 240 × 1

Enable inputs and outputs

DF

Data

DISP

OUTn

0

1

1

1

0

1

0

0

1

1

1

1

*

*

0

L/R

CH120

Shift direction

H

L

EIO1

→ OUT1 →

→ OUT240 → EIO4

H

H

EIO1

→ OUT1 →

→ OUT120

EIO3

→ OUT121 →

→ OUT240 → EIO4

L

L

EIO1

← OUT1 ←

← OUT240 ← EIO4

L

H

EIO1

← OUT1 ←

← OUT120 ← EIO3

OUT121

←

← OUT240 ← EIO4